compat / mingw.hon commit Merge branch 'bc/mailsplit-cr-at-eol' (bcd45e2)
   1#include <winsock2.h>
   2
   3/*
   4 * things that are not available in header files
   5 */
   6
   7typedef int pid_t;
   8#define hstrerror strerror
   9
  10#define S_IFLNK    0120000 /* Symbolic link */
  11#define S_ISLNK(x) (((x) & S_IFMT) == S_IFLNK)
  12#define S_ISSOCK(x) 0
  13#define S_IRGRP 0
  14#define S_IWGRP 0
  15#define S_IXGRP 0
  16#define S_ISGID 0
  17#define S_IROTH 0
  18#define S_IXOTH 0
  19
  20#define WIFEXITED(x) 1
  21#define WIFSIGNALED(x) 0
  22#define WEXITSTATUS(x) ((x) & 0xff)
  23#define WTERMSIG(x) SIGTERM
  24
  25#define SIGHUP 1
  26#define SIGQUIT 3
  27#define SIGKILL 9
  28#define SIGPIPE 13
  29#define SIGALRM 14
  30#define SIGCHLD 17
  31
  32#define F_GETFD 1
  33#define F_SETFD 2
  34#define FD_CLOEXEC 0x1
  35
  36struct passwd {
  37        char *pw_name;
  38        char *pw_gecos;
  39        char *pw_dir;
  40};
  41
  42extern char *getpass(const char *prompt);
  43
  44struct pollfd {
  45        int fd;           /* file descriptor */
  46        short events;     /* requested events */
  47        short revents;    /* returned events */
  48};
  49#define POLLIN 1
  50#define POLLHUP 2
  51
  52typedef void (__cdecl *sig_handler_t)(int);
  53struct sigaction {
  54        sig_handler_t sa_handler;
  55        unsigned sa_flags;
  56};
  57#define sigemptyset(x) (void)0
  58#define SA_RESTART 0
  59
  60struct itimerval {
  61        struct timeval it_value, it_interval;
  62};
  63#define ITIMER_REAL 0
  64
  65/*
  66 * trivial stubs
  67 */
  68
  69static inline int readlink(const char *path, char *buf, size_t bufsiz)
  70{ errno = ENOSYS; return -1; }
  71static inline int symlink(const char *oldpath, const char *newpath)
  72{ errno = ENOSYS; return -1; }
  73static inline int fchmod(int fildes, mode_t mode)
  74{ errno = ENOSYS; return -1; }
  75static inline int fork(void)
  76{ errno = ENOSYS; return -1; }
  77static inline unsigned int alarm(unsigned int seconds)
  78{ return 0; }
  79static inline int fsync(int fd)
  80{ return 0; }
  81static inline int getppid(void)
  82{ return 1; }
  83static inline void sync(void)
  84{}
  85static inline int getuid()
  86{ return 1; }
  87static inline struct passwd *getpwnam(const char *name)
  88{ return NULL; }
  89static inline int fcntl(int fd, int cmd, long arg)
  90{
  91        if (cmd == F_GETFD || cmd == F_SETFD)
  92                return 0;
  93        errno = EINVAL;
  94        return -1;
  95}
  96/* bash cannot reliably detect negative return codes as failure */
  97#define exit(code) exit((code) & 0xff)
  98
  99/*
 100 * simple adaptors
 101 */
 102
 103static inline int mingw_mkdir(const char *path, int mode)
 104{
 105        return mkdir(path);
 106}
 107#define mkdir mingw_mkdir
 108
 109static inline int mingw_unlink(const char *pathname)
 110{
 111        /* read-only files cannot be removed */
 112        chmod(pathname, 0666);
 113        return unlink(pathname);
 114}
 115#define unlink mingw_unlink
 116
 117static inline int waitpid(pid_t pid, int *status, unsigned options)
 118{
 119        if (options == 0)
 120                return _cwait(status, pid, 0);
 121        errno = EINVAL;
 122        return -1;
 123}
 124
 125/*
 126 * implementations of missing functions
 127 */
 128
 129int pipe(int filedes[2]);
 130unsigned int sleep (unsigned int seconds);
 131int mkstemp(char *template);
 132int gettimeofday(struct timeval *tv, void *tz);
 133int poll(struct pollfd *ufds, unsigned int nfds, int timeout);
 134struct tm *gmtime_r(const time_t *timep, struct tm *result);
 135struct tm *localtime_r(const time_t *timep, struct tm *result);
 136int getpagesize(void);  /* defined in MinGW's libgcc.a */
 137struct passwd *getpwuid(int uid);
 138int setitimer(int type, struct itimerval *in, struct itimerval *out);
 139int sigaction(int sig, struct sigaction *in, struct sigaction *out);
 140int link(const char *oldpath, const char *newpath);
 141
 142/*
 143 * replacements of existing functions
 144 */
 145
 146int mingw_open (const char *filename, int oflags, ...);
 147#define open mingw_open
 148
 149char *mingw_getcwd(char *pointer, int len);
 150#define getcwd mingw_getcwd
 151
 152char *mingw_getenv(const char *name);
 153#define getenv mingw_getenv
 154
 155struct hostent *mingw_gethostbyname(const char *host);
 156#define gethostbyname mingw_gethostbyname
 157
 158int mingw_socket(int domain, int type, int protocol);
 159#define socket mingw_socket
 160
 161int mingw_connect(int sockfd, struct sockaddr *sa, size_t sz);
 162#define connect mingw_connect
 163
 164int mingw_rename(const char*, const char*);
 165#define rename mingw_rename
 166
 167#ifdef USE_WIN32_MMAP
 168int mingw_getpagesize(void);
 169#define getpagesize mingw_getpagesize
 170#endif
 171
 172/* Use mingw_lstat() instead of lstat()/stat() and
 173 * mingw_fstat() instead of fstat() on Windows.
 174 */
 175#define off_t off64_t
 176#define stat _stati64
 177#define lseek _lseeki64
 178int mingw_lstat(const char *file_name, struct stat *buf);
 179int mingw_fstat(int fd, struct stat *buf);
 180#define fstat mingw_fstat
 181#define lstat mingw_lstat
 182#define _stati64(x,y) mingw_lstat(x,y)
 183
 184int mingw_utime(const char *file_name, const struct utimbuf *times);
 185#define utime mingw_utime
 186
 187pid_t mingw_spawnvpe(const char *cmd, const char **argv, char **env);
 188void mingw_execvp(const char *cmd, char *const *argv);
 189#define execvp mingw_execvp
 190
 191static inline unsigned int git_ntohl(unsigned int x)
 192{ return (unsigned int)ntohl(x); }
 193#define ntohl git_ntohl
 194
 195sig_handler_t mingw_signal(int sig, sig_handler_t handler);
 196#define signal mingw_signal
 197
 198/*
 199 * ANSI emulation wrappers
 200 */
 201
 202int winansi_fputs(const char *str, FILE *stream);
 203int winansi_printf(const char *format, ...) __attribute__((format (printf, 1, 2)));
 204int winansi_fprintf(FILE *stream, const char *format, ...) __attribute__((format (printf, 2, 3)));
 205#define fputs winansi_fputs
 206#define printf(...) winansi_printf(__VA_ARGS__)
 207#define fprintf(...) winansi_fprintf(__VA_ARGS__)
 208
 209/*
 210 * git specific compatibility
 211 */
 212
 213#define has_dos_drive_prefix(path) (isalpha(*(path)) && (path)[1] == ':')
 214#define is_dir_sep(c) ((c) == '/' || (c) == '\\')
 215#define PATH_SEP ';'
 216#define PRIuMAX "I64u"
 217
 218void mingw_open_html(const char *path);
 219#define open_html mingw_open_html
 220
 221/*
 222 * helpers
 223 */
 224
 225char **copy_environ(void);
 226void free_environ(char **env);
 227char **env_setenv(char **env, const char *name);
 228
 229/*
 230 * A replacement of main() that ensures that argv[0] has a path
 231 */
 232
 233#define main(c,v) dummy_decl_mingw_main(); \
 234static int mingw_main(); \
 235int main(int argc, const char **argv) \
 236{ \
 237        argv[0] = xstrdup(_pgmptr); \
 238        return mingw_main(argc, argv); \
 239} \
 240static int mingw_main(c,v)
 241
 242#ifndef NO_MINGW_REPLACE_READDIR
 243/*
 244 * A replacement of readdir, to ensure that it reads the file type at
 245 * the same time. This avoid extra unneeded lstats in git on MinGW
 246 */
 247#undef DT_UNKNOWN
 248#undef DT_DIR
 249#undef DT_REG
 250#undef DT_LNK
 251#define DT_UNKNOWN      0
 252#define DT_DIR          1
 253#define DT_REG          2
 254#define DT_LNK          3
 255
 256struct mingw_dirent
 257{
 258        long            d_ino;                  /* Always zero. */
 259        union {
 260                unsigned short  d_reclen;       /* Always zero. */
 261                unsigned char   d_type;         /* Reimplementation adds this */
 262        };
 263        unsigned short  d_namlen;               /* Length of name in d_name. */
 264        char            d_name[FILENAME_MAX];   /* File name. */
 265};
 266#define dirent mingw_dirent
 267#define readdir(x) mingw_readdir(x)
 268struct dirent *mingw_readdir(DIR *dir);
 269#endif // !NO_MINGW_REPLACE_READDIR